3-Ethyl-2,2-dimethyl-3-pentanol
3-Ethyl-2,2-dimethyl-3-pentanol (CAS: 66793-96-2) is a tertiary alcohol with the molecular formula (CH3)3CC(C2H5)2OH and a molecular weight of 144.25 g/mol. This organic compound serves as a valuable building block in chemical synthesis, particularly within organic chemistry research and development. Its unique structure makes it a useful intermediate for creating more complex molecules.
- Synonyms
- (CH3)3CC(C2H5)2OH

Organic Synthesis Intermediate
3-Ethyl-2,2-dimethyl-3-pentanol is employed as a starting material or intermediate in the synthesis of various organic compounds. Its tertiary alcohol functionality allows for diverse chemical transformations.
Research and Development
This chemical finds application in R&D laboratories for exploring new synthetic routes and developing novel molecules. It is a useful reagent for academic and industrial research purposes.
Building Block for Complex Molecules
As a C9 alcohol, it can be incorporated into larger molecular structures. Its specific steric and electronic properties can influence the characteristics of the final product.
| Molecular weight | 144.25 |
|---|---|
| Linear formula | (CH3)3CC(C2H5)2OH |
| Assay | 98% |
| Boiling point | 174 °C(lit.) |
| Density | 0.852 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.442(lit.) |
| Melting point | −19 °C(lit.) |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 54 °C / 129.2 °F |
| Transport (UN / ADR) | UN 1987C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-Ethyl-2,2-dimethyl-3-pentanol used for?
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3-Ethyl-2,2-dimethyl-3-pentanol is primarily used as a building block and intermediate in organic synthesis and research and development.
What are the CAS number and formula for 3-Ethyl-2,2-dimethyl-3-pentanol?
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The CAS number is 66793-96-2, and the linear formula is (CH3)3CC(C2H5)2OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Ethyl-2,2-dimethyl-3-pentanol with an assay of 98%. This product is suitable for research and general chemical synthesis; it is not supplied as USP, BP, or EP grade.
What are the primary safety hazards associated with this chemical?
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3-Ethyl-2,2-dimethyl-3-pentanol is a flammable liquid (H226) and requires careful handling. It is classified as a Warning with signal word and presents a flash point of 54 °C (129.2 °F). Appropriate personal protective equipment, including eyeshields and gloves, should be used.
How is 3-Ethyl-2,2-dimethyl-3-pentanol typically packed and shipped?
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This chemical is typically packed and shipped according to international regulations for flammable liquids, adhering to UN 1987 C3 / PGIII standards. TSS exports globally.
How can I request a sample or a quote for 3-Ethyl-2,2-dimethyl-3-pentanol?
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To request a sample or a quote, please contact our sales team through the website or by phone, providing the product name and CAS number (66793-96-2).
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